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Finding the Fourth Proportional to 34,654.80, 51,985.08 and 13,866.96

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Solution

The fourth proportional to 34,654.80, 51,985.08 and 13,866.96 is: 20,801.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.80 : 51,985.08 = 13,866.96 : x
  2. Step 2: Convert to fraction form
    34,654.80/51,985.08 = 13,866.96/x
  3. Step 3: Cross multiply
    34,654.80x = 51,985.08 × 13,866.96
  4. Step 4: Simplify right side
    34,654.80x = 720,875,024.96
  5. Step 5: Solve for x
    x = 720,875,024.96/34,654.80
  6. Step 6: Final answer
    x = 20,801.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.